Dark matter only tries to explain why things in the
universe doesn’t work the way our theories explain things.
Obviously our theories about formation and maintenance of
our universe may be flawed. Or our understanding of matter
for that matter. NO pun intended.
That was so well put. Thank you. You must feel like a heretical lunatic sometimes, but that is the obvious answer. We are in a period of epic cosmological error. They will laugh at us in 100 years.
OR.... that physics works differently on the scales we are trying to understand.
My guess is that the need for dark matter to explain certain cosmology was due to a poor estimate of the amount of matter in galaxies that cannot be seen or detected by us. It’s not invisible, it just isn’t lit up, and it’s to small.
We used to think that there were few Earthlike planets or systems. Now we are finding there are a multitude. We now know that our solar system has an inner ring of junk, and debris scattered around the periphery. Would beings from another galaxy be able to detect this ‘matter’?
Probably Not. Doesn’t mean it’s invisible, or mysterious.
I also suspect that a multitude of stars, such as at the galaxy center, exhibit a pull of gravity based on the size of the ‘ball’, which is higher than the collective ‘gravity’ of each star.